The woman suspected of shooting three people at YouTube's headquarters in San Bruno, California, on Tuesday yelled "come at me" or "come get me" during her rampage, a witness told the CNN affiliate KPIX.

Nasim Aghdam, the 39-year-old San Diego resident who police said was behind the Tuesday shooting that left three people wounded, reportedly taunted people in the courtyard outside the building, according to a YouTube engineer identified by multiple news outlets as Zach Vorhies.

"I went outside with my electric skateboard and I started skating down, because I thought it was a fire," Voorhies told KPIX. "I heard some yelling and I saw somebody down on his back with a red spot on his stomach."

Police said Aghdam visited a gun range in the area a few hours before she went to YouTube's headquarters, where she used a legally purchased Smith & Wesson 9mm semiautomatic handgun to wound three people before killing herself, according to San Bruno Police chief Ed Barberini. One other person was injured while fleeing.

Aghdam fired "quite a few" rounds and there was no indication that she was targeting specific individuals, Barberini told NBC News.

"I will tell you that the evidence at the scene suggests that she was not super proficient," Barberini said to NBC News. "There seemed to be no kind of method or rhyme or reason to what she was doing."

Aghdam's online postings suggest she had a grievance against YouTube for filtering some of her videos, which she believed contributed to reductions in viewership and revenue.

"There is no equal growth opportunity on YOUTUBE or any other video sharing site, your channel will grow if they want to!!!!!," a post on a website linked to her Instagram said.

Ismail Aghdam, the woman's father, said that she grew to hate the company after it "stopped everything and now she has no income," according to NBC News.

Aghdam had an active presence on several social media platforms. YouTube, Instagram, and Facebook accounts connected to the woman featured a wide range of content — including dancing, fitness tips, and commentary on veganism. The accounts have since been deactivated.